.page-faq {
  --faq-space: clamp(20px, 3.4vw, 44px);
  --faq-amber-rail: rgba(242, 169, 59, 0.62);
  background: var(--bs-ink);
  color: var(--bs-paper);
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-faq__top {
  padding-top: clamp(18px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(22px, 3.6vw, 44px) 0 clamp(30px, 5.6vw, 68px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  font-family: var(--bs-font-display);
  font-weight: 800;
  font-size: clamp(32px, 8.4vw, 74px);
  line-height: 1.03;
  letter-spacing: -0.03em;
  margin: 14px 0 0;
  max-width: 15em;
  text-wrap: balance;
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(243, 239, 228, 0.78);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--bs-radius-lg);
  overflow: hidden;
  border: 1px solid var(--bs-hair);
  background: linear-gradient(158deg, rgba(18, 51, 38, 0.92), rgba(12, 20, 19, 0.96));
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 问答主体：左侧分组 + 右侧手风琴 ---------- */

.page-faq .faq-body {
  padding: clamp(20px, 3.6vw, 40px) 0 0;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-space);
  padding-bottom: clamp(34px, 6vw, 76px);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid var(--bs-hair);
  border-radius: var(--bs-radius-pill);
  color: rgba(243, 239, 228, 0.86);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.2;
  white-space: nowrap;
  transition: border-color var(--bs-dur) var(--bs-ease),
              background-color var(--bs-dur) var(--bs-ease),
              color var(--bs-dur) var(--bs-ease);
}

.page-faq .faq-index__link .bs-data {
  font-size: 11.5px;
  color: var(--bs-moss);
  letter-spacing: 0.08em;
}

.page-faq .faq-index__link:hover {
  border-color: var(--bs-lime-hair);
  color: var(--bs-paper);
}

.page-faq .faq-index__link.is-active {
  border-color: var(--bs-lime);
  background: rgba(182, 255, 55, 0.09);
  color: var(--bs-lime);
}

.page-faq .faq-index__link.is-active .bs-data {
  color: var(--bs-lime);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  color: var(--bs-moss);
  line-height: 1.7;
  max-width: 26ch;
}

/* ---------- 分组与手风琴条目 ---------- */

.page-faq .faq-group {
  padding: clamp(26px, 4.4vw, 46px) 0;
  border-top: 1px solid var(--bs-hair-soft);
}

.page-faq .faq-group:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(12px, 2vw, 20px);
}

.page-faq .faq-group__no {
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--bs-moss);
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-family: var(--bs-font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 30px);
  letter-spacing: -0.012em;
  line-height: 1.2;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--bs-hair-soft);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 17px 44px 17px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  line-height: 1.62;
  color: var(--bs-paper);
  transition: color var(--bs-dur) var(--bs-ease);
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary:hover {
  color: var(--bs-lime);
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--bs-moss);
  border-bottom: 1.5px solid var(--bs-moss);
  transform: rotate(45deg);
  transition: transform var(--bs-dur) var(--bs-ease),
              border-color var(--bs-dur) var(--bs-ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(225deg);
  border-color: var(--bs-lime);
}

.page-faq .faq-item__no {
  flex: none;
  min-width: 22px;
  padding-top: 4px;
  font-family: var(--bs-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--bs-moss);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--bs-amber);
}

.page-faq .faq-item__a {
  position: relative;
  padding: 0 44px 22px 36px;
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 3px;
  bottom: 24px;
  width: 1.5px;
  background: var(--faq-amber-rail);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(243, 239, 228, 0.74);
  max-width: 64ch;
}

/* ---------- 更正流程 ---------- */

.page-faq .faq-flow {
  padding: clamp(40px, 7vw, 86px) 0;
  border-top: 1px solid var(--bs-hair);
}

.page-faq .faq-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4.6vw, 60px);
  align-items: start;
}

.page-faq .faq-flow h2 {
  margin: 14px 0 0;
  font-family: var(--bs-font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.024em;
  max-width: 14em;
}

.page-faq .faq-flow__lede {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(243, 239, 228, 0.74);
}

.page-faq .faq-flow__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--bs-hair-soft);
}

.page-faq .faq-flow__step {
  padding: 16px 0 18px;
  border-bottom: 1px solid var(--bs-hair-soft);
}

.page-faq .faq-flow__step-no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--bs-amber);
}

.page-faq .faq-flow__step h3 {
  margin: 8px 0 0;
  font-family: var(--bs-font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--bs-paper);
}

.page-faq .faq-flow__step p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(243, 239, 228, 0.68);
  max-width: 46ch;
}

.page-faq .faq-flow__media {
  margin: 0;
  border-radius: var(--bs-radius-lg);
  overflow: hidden;
  border: 1px solid var(--bs-hair);
  background: linear-gradient(200deg, rgba(18, 51, 38, 0.86), rgba(12, 20, 19, 0.96));
}

.page-faq .faq-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

/* ---------- 更新时点横向对照条 ---------- */

.page-faq .faq-timing {
  background: linear-gradient(112deg, rgba(18, 51, 38, 0.94), rgba(12, 20, 19, 0.98));
  border-top: 1px solid var(--bs-hair);
  border-bottom: 1px solid var(--bs-hair);
  padding: clamp(30px, 5.2vw, 58px) 0;
}

.page-faq .faq-timing__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: clamp(20px, 3.2vw, 32px);
}

.page-faq .faq-timing__head h2 {
  margin: 0;
  font-family: var(--bs-font-display);
  font-weight: 700;
  font-size: clamp(19px, 3vw, 26px);
  letter-spacing: -0.014em;
}

.page-faq .faq-timing__head .bs-annotation {
  color: var(--bs-moss);
}

.page-faq .faq-timing__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--bs-hair-soft);
  border-radius: var(--bs-radius-md);
  overflow: hidden;
}

.page-faq .faq-timing__cell {
  background: rgba(12, 20, 19, 0.72);
  padding: 20px 18px;
}

.page-faq .faq-timing__cell .bs-eyebrow {
  color: var(--bs-cyan);
}

.page-faq .faq-timing__val {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 12px 0 0;
}

.page-faq .faq-timing__val .bs-data {
  font-family: var(--bs-font-mono);
  font-size: clamp(30px, 6vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--bs-lime);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-timing__unit {
  font-size: 13px;
  color: rgba(243, 239, 228, 0.66);
}

.page-faq .faq-timing__cell .bs-annotation {
  margin: 12px 0 0;
  color: var(--bs-moss);
  line-height: 1.6;
}

/* ---------- 收尾 ---------- */

.page-faq .faq-outro {
  padding: clamp(34px, 6vw, 74px) 0 0;
}

.page-faq .faq-outro__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: end;
  background: var(--bs-panel-tint, rgba(28, 43, 38, 0.6));
  border: 1px solid var(--bs-hair);
  border-radius: var(--bs-radius-lg);
  padding: clamp(22px, 3.6vw, 42px);
}

.page-faq .faq-outro__text h2 {
  margin: 0;
  font-family: var(--bs-font-display);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 30px);
  letter-spacing: -0.018em;
  line-height: 1.2;
}

.page-faq .faq-outro__text p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(243, 239, 228, 0.76);
}

.page-faq .faq-outro__text .bs-data {
  font-family: var(--bs-font-mono);
  color: var(--bs-amber);
  letter-spacing: 0.02em;
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-timing__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(34px, 5vw, 72px);
  }

  .page-faq .faq-layout {
    grid-template-columns: minmax(172px, 2fr) minmax(0, 7fr);
    gap: clamp(28px, 4.4vw, 68px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__link {
    justify-content: space-between;
    width: 100%;
  }

  .page-faq .faq-flow__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 4.6vw, 68px);
  }

  .page-faq .faq-timing__row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-outro__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 22px;
  }

  .page-faq .faq-flow__step {
    border-bottom: 0;
    border-top: 1px solid var(--bs-hair-soft);
    padding-top: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::after {
    transition: none;
  }
}

.page-faq {
  --bs-panel-tint: transparent;
}